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Rinnai RWM200 WiFi Control Module for Tankless Water Heater, Black, Smart Phone Control, Indoor Installation

  • Based on 10 reviews
Condition: New
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$136.86 Why this price?
Holiday Deal · 62% off was $359.99

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

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Availability: In Stock.
Fulfilled by eFaucets

Arrives Sunday, Dec 14
Order within 11 hours and 3 minutes
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Features

  • SMART CONNECTIVITY: Enables wireless control of your Rinnai tankless water heater through a smartphone app, allowing remote temperature adjustments and monitoring
  • EASY INSTALLATION: Features a simple two-wire interface that quickly connects to your Wi-Fi network, compatible with specifically equipped Rinnai tankless water heaters
  • FLEXIBLE PLACEMENT: Can be installed up to 300 feet away from the water heater when Wi-Fi signal is weak, designed for indoor installation but works with outdoor heaters
  • MONITORING FEATURES: Tracks energy usage, enables schedule setting, and provides important system alerts directly to your mobile device
  • MOBILE CONTROL: Works with the Rinnai Control-R mobile app to provide comprehensive control of water temperature settings and heater functions from your phone or tablet

Description

Transform your Rinnai tankless water heater into a smart device with the RWM200 WiFi Control Module. This innovative controller connects your water heater to your smartphone, giving you complete control at your fingertips. Through the Rinnai Control-R mobile app, you can remotely adjust temperature settings, monitor energy usage, create custom schedules, and receive important system notifications. Installation is straightforward with a two-wire interface that connects to your home's WiFi network. For homes with weak WiFi signals, the module can be installed up to 300 feet away from the water heater while maintaining connectivity. While the module itself requires indoor installation, it's compatible with both indoor and outdoor water heater units. The RWM200 brings modern convenience to water heating, allowing you to manage your system from anywhere through your smartphone or tablet. Perfect for homeowners who want to optimize their water heating efficiency and enjoy the convenience of smart home technology.

Brand: Rinnai


Color: Black


Voltage: 12 Volts


Mounting Type: Wall


Is Electric: Yes


Brand: ‎Rinnai


Color: ‎Black


Voltage: ‎12 Volts


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎Rinnai


UPC: ‎766156017476


Part Number: ‎Rwm200


Item Weight: ‎8 ounces


Product Dimensions: ‎6 x 3 x 6 inches


Item model number: ‎RWM200


Included Components: ‎Wifi Control Module, Mounting Hardware, Installation Manual


Date First Available: May 27, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Price/performance is excellent!
Plugged it in and with the app connected to my WiFi and off we go!
Reviewed in the United States on November 27, 2025 by CJ

  • Shame
Connection keeps on losing
Reviewed in the United States on October 7, 2025 by Ray

  • Essential
Very easy installation. Essential for setting schedules. For the over-all $$$$ of the Rinnai it should be included!
Reviewed in the United States on November 9, 2025 by J. Granum

  • Wifi control?
The module itself is very easy to install and connect to WiFi however its functionality is misleading. It states you can adjust the temperature of the heater and there’s buttons that can be synced to the module but No where does it show you how to do this. So until I figure out how to sync and be able to control the temperature will it be of any use to me ... show more
Reviewed in the United States on November 15, 2025 by rjj

  • Connects in a snap
Love it
Reviewed in the United States on November 3, 2025 by Robert Keiling

  • Works
Works hooked right up was simple
Reviewed in the United States on September 10, 2025 by Stephanie Gibbs-Churchley

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